Pneumatic tank



FIG. 1 is a front left perspective view of the pneumatic tank showing our new design, the right rear perspective view being a mirror image;

FIG. 2 is a front right perspective view thereof, the left rear perspective view being a mirror image;

FIG. 3 is a top front left perspective view thereof, the top right rear perspective view being a mirror image;

FIG. 4 is a top front right perspective view thereof, the top left rear perspective view being a mirror image;

FIG. 5 is a bottom front left perspective view thereof, the bottom right rear perspective view being a mirror image;

FIG. 6 is a bottom front right perspective view thereof, the bottom left rear perspective view being a mirror image;

FIG. 7 is a left side elevation view thereof, the right side elevation view being a mirror image

FIG. 8 is a top plan view thereof;

FIG. 9 is a bottom plan view thereof; and,

FIG. 10 is a front elevation view thereof, the rear elevation view being a mirror image.

The broken lines illustrate portions of the pneumatic tank which form no part of the claimed design. 

CLAIM The ornamental design for a pneumatic tank, as shown and described. 